Joseph cutebertson



(No Model.)

J. CUTHBERTSON.

` l ARBOR BEARING. No. 422,298. Patented Feb. 25, 1890.

UNITED STATES PATENT OFFICE.

JOSEPH OUTHBERTSON, OF BUNKER IIIL-Ig-ILLINOIS, ASSIGNOR TO THE BOSSCOULTER COMPANY, OF SAME PLACE.

ARBORBRING.

.SPECIFICATION forming part of Letters Patent No. 422,298, datedFebruary 25, 1890.

Application filed uly 13,1888. Serial Ne|279|797 (o mud-ei.)

To all whom it may concern:

Be it known that I, JOSEPH CUTHEER'rsoN, of Bunker I-Iill, in the countyof Macoupin and State of Illinois, have invented a certain new anduseful Improvement in Arbor-Bearings for Rolling Oolters, &c., ot' whichthe tollowing is a full, clear, and exact description, reference beinghad i to the accompanying drawings forming part of this specification.

My invention consists'in the combination, with a wooden arbor, ot ametal screw-bolt whch passes through the arbor from end to en Figure Iis a side view of the colter, including the yoke, &c. Fig. II is anenlarged section at II II, Fig. I. Fig. III is a side view of the arborwith the nut and washer removed from the bolt. washer.

At 1 is seen apart of the plowsbeamdowhich the shank 2 of the coltermaybe attached in any preferred manner.

3 is the fork or yoke, which may be cast in one piece with the shank, orbe made in a separate piece.

No novelty is claimed in the above parts.

The sides 4 of the yoke may end in bosses 5, as shown, the same beingbored through transversely for the passage of the arbor on which thecolter turns. The arbor has a tubular sleeve or wooden pin 7, with anoncylindrical head 8, which tits in a cavity at 6 of one of the bosses5. 1

9 is a metal bolt, which passes axially through the Wooden sleeve or pin7 The head 10 of the bolt is shown bearing against the head S of thesleeve and a washer l1 at the other end bearing against the other box 5,a nut 12 screwing upon the bolt bearing against the nut. The bolt isshown with a ilat spot 13 at one side, and the washer with a iiat place14 at one side ot the bore to tit the iiat spot of the bolt, and 'thusprevent the rotation of the washer. (See Figs. I and IV.) The washermay, however, be dispensed with and the diameter of the nut 12 madesufficient to give properbearing against the boss 5 outside the sleeve7. The bolt 9 may be reversed, the head bearing against the boss in theposition of the washer and the nut in the place of the head bearingagainst the head 8 of the sleeve. In this case the diameter of the headwould properly be indicated by the Washer.

15 is the colter-blade, and 16 the hub, the

Fig. IV is a front view of the latter shown to consist of two partsriveted to the sides ot` the blade. 17 is a bushing inserted in the hub.18 are washers, of leather or other suitable material, forming a packingbetween the bosses 5 -and the ends of the hub to prevent the entrance ofdust. The bushing and packing-disks are not essential, for they may bedispensed with without affecting the invention.

There aretwo requirements ot the journal bearing of 'a rolling colter,first, that the fric tion shall be light, and, second, that the coltershall not shake or wabble. The rst of these is secured by the provisionof awooden arbor bearing tor the metal hub, and the second must besecured by giving the hub a steady bearing against the legs of the yoke.This latter is accomplished by means of the screwbolt 9,-for by turningthe nut 12 inward the bosses or ends 5 of the yoke are drawn inward uponthe hub, or upon washers bearing against its end.

By the combination ot the wooden sleeve and met-al core composed ot ascrewbolt an arbor is constructed which is very cheap and leaves nothingto be desired for efficiency, and which may readily be taken out andreplaced by a new one without the services of a mechanic.

I claim-d' l. In combination with the bosses 5 ot the yoke of a rotarycolter, a tubular arbor 7, iixed in said yoke, a bolt 9, passing throughsaid arbor and secured therein, colter-blade 15, and hub 16, consistingof two parts secured to the side ofv the blade, all substantially as andfor the purpose set forth.

2. In combination with the bosses 5 of the yoke of a rotary colter, oneof said bosses having a rectangular socket 6, a wooden sleeve 7, ittingin the sockets of the bosses and having a head 8 fitting in socket 6,bolt 9, passing through this said sleeve and secured by a nut,colter-blade 15, hub 16, consisting of two parts riveted to the sides ofthe blade, bushing 17, inserted in the hub and bearing on the sleeve 7,and washers 18 at each end of the bushing, substantially as Shown anddescribed.

JOSEPH CUTHBERTSON.

In presence cfg;

J. H BELT, J r., MARCUS SEssEL.

ICO

